Siemens



(No Model.) 2 Sheets-Sheet 1. S

G. W. Von SIEMENS. GONDUCTOR SYSTEM FOR ELECTRIC RAILWAYS.

No. 489,573. Patented Jan. 10, 1893. j" .1,

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' BY m l ATTURNEY me wams Patins co, Hum-urac.. wAsHmc-Yon, D. c.l

(No Model.) 2 Sheets-Sheet 2.

Gr. W. von SEMENS.

GONDUGTOE SYSTEM EOE ELECTRIC EAILWAYS.

No 489,573. Patented Jan. 1o, 189s.`

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AU RNE Y Amant @triest GEORG WILHELM VON SIEMENS, OF BERLIN, GERMANY,ASSIGNOR TO SIEMENS da HALSKE, OF SAME PLACE.

CONDUCTOR SYSTEM FOR ELECTRIC RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 489,573, dated January10, 1893.

y Application tiled February S, 1892 Serial No. 420,222. (No model.)

To @ZZ whom t may concern:

Be it known that I, GEORG WILHELM v oN SIEMENS, a subject of the King ofPrussia, residing at the city of Berlin, Prussia, Germany, have inventedcertain new and 'useful Improvements in Devices for Supplying Current toElectrically-Operated Vehicles; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention consists in means for supplying the electro-motivecurrent to moving railway cars through an insulated conductor removedfrom the trackway, or otherwise situated, in a manner such as to promoteperfect insulation of such main conductor, and avoid llosses which areotherwise liable to result,

owin g to proximity to the ground when traveling contact is made withsuch conductor.

Referring to the accompanying drawings, in which similar letters andnumerals of reference indicate corresponding parts throughout: Figure l,is a longitudinal Vertical section through the road bed of a railway andillustrating my invention; Fig. 2, a cross section of Fig. l; Fig. 3, adiagram of the apparatus illustrating one form of construction; and Fig.4, a diagram illustrating a modification.

K is the main insulated conductor or feeder removed from the trackway.

t', t2, t3, &c., are sectional contact making conductors constitutingone rail of the railway, or independently disposed.

'r represents the other rail which is utilized as a return currentconductor.

a represents the motor on the car.

P', P2, represent a double traveling contact making device upon the carconnected to one pole of the motor, and adapted to promote continuouselectrical connection by closing a circuit through one section t',before it is broken upon another. The single traveling contact P3,connected to the opposite pole of the motor, forms continuous connectionwith the return current rail r. t

The traveling contacts of one car are represented at R, in Fig. 3, andthose of another car at R.

W represents an electro magnet upon the car traveling in proximity tothe sectional rail t', t2, t3, &c. At the rail joints of the sectionalrail t, t2, t3, suitable insulations are interposed, and on the underside of the sections adjacent to the insulations, central pieces arelocated, into contact with which, the armatures m,m2, m3, ne., areattracted successively by the car magnet NV, to close circuit throughWires 2, 4.

The apparatuses A', A2, A3, &;c., embedded in the roadway or located ina suitable sul)- way are adapted to electrically connect and disconnectthe main line K, with each sectional contact rail t', t2, t3,insuccession as the car progresses.

Referring to the apparatus A2, for instance, the electro-magnet E2 isincluded in the shunt circuit 2, controlled by the armature m. When theelectro-magnet E2, is induced, the armature ,e2 is attracted and closescircuit through 3 and 5. The latch armature h2 locks the armature z2,and maintains the electrical connection with the rail section t2, untilthe magnet XV of the car arrives opposite the next armature m2, andcloses circuit through the next rail section t3. A shunt circuit isclosed by the armature m2 through branch 4 of the apparatus A2,including magnet F2, which withdraws `the latch armature h2, releasingthe contact armature e2, breaking circuit through 3 and 5 pertaining torail t2. The same operation is repeated for each apparatus.

- The springs t', g, retract the respective armatures z2, h2, when theirmagnets'are cut out of circuit.

Fig. 3, illustrates the posit-ion of the parts at the period when thecar is passing from section t to section t2. The current is led fromwire K to the coils of the magnet F and retracts the spring armature 7Lof the latter to permit spring to withdraw armature e" and rupturecurrent connection with the section t. The current continues from coilsof magnet E along wire 4, armature m', and cross wire to returnconductor r. Current is likewise supplied from conductor K to wire 3,and passes to wire 2 including coils of magnet E2 to magnet m and crosswire to return conductor fr the completion of this last inen- IOO tionedcircuit energizing the magnet E2 to move the armature z2, and establishcircuit connection between section t2, and conductor K.

In the modification Fig. 4, the diagram illustrates a double trackarrangement in which the cars move along the respective tracks inopposite directions at the same time. In said arrangement, two armaturesm', m', rbc. are located at each joint ot' the sectional rail t', t2,t3, dsc. each armature individually controlling a shunt circuitincluding the circuit closing and locking magnets. Assuming a car passesfrom the section t to section t2, the armature m', represented in thebackground will be attracted to effect the following:-a circuit will beestablished from the supply conductor K through wires 3, 2, magnet E2operated armature m', and cross wire to return current rail r, thusenergizing the magnet E2 attracting armature z2 to directly connect thesection t2, with the main supply conductor K. Coincidently a circuit isestablished from the conductor K, through wire 3 of preceding sectiont', magnet F wire 4 operated armature m' and cross wire to returncurrent rail fr, thereby exciting said magnet F, to attract its armatureh', against the action of its spring g and thereby unlock circuitclosing armature a', to enable its spring i, to retract the same andrupture the circuit connection of section t', with the main supplyconductor. Then a car moves in the opposite direction on the paralleltrack and passes say from section t5, to section t4, the armature m4,represented in the foreground will be attracted to elect thefollowing:-a circuit through wires 3, 2, of section 154, magnet E4, Wire5 operated armature m4, and cross wire to return current rail r, thusattracting circuit closing armature 25, and placing section t4, indirect connection with the main supply conductor. Coincidently a circuitis established leading from main supply conductor K, through wire 3, ofsection t5, through the coils of magnet F5 wire 6, and operated armaturem4 to return rail fr, exciting magnet F5 and retracting the lockingarmature h5, to release armature .e5 and interrupt the currentconnection of section #with the main supply conductor.

l. In an electric railway, the combination with a contact conductorcomposed of a series of relatively insulated sections, a supplyconductor, normally interrupted connections between the supply andcontact conductors, an electro-magnetic device for each contact section,and armatures adapted to be successively operated by a magnetic deviceon the vehicle, to close the circuit through said magnetic devices, tocomplete the interrupted supply connection of the section into which thevehicle is moving, and interrupt the corresponding connection of thepreceding section.

2. In an electric railway, the combination with a contact conductorcomposed of a series of relatively insulated sections, a supplyconductor, normally interrupted connections between the supply andcontact conductors, an electro-magnetic device for each section,comprising electro-magnetic circuit completing and locking means, and aseries of armatures adapted to be operated by an electro-magnetic deviceon the car to operate the circuit closing device of one section, andrelease the lock of the preceding section.

3. In an electric railway, the combination with a contact conductorcomposed of a series of relatively insulated sections, a main supplyconductor, normally interrupted connections between the supply andcontact conductors, a device for each section comprising magnets havingspring retracted circuit clos ing and locking armatures, and a series ofarmaturesmz, &c., adapted to be actuated by an electro-magnetic deviceon the car to operate the circuit closing magnet of one section, and theretracting magnet of the locking armature of the adjoining section,substantially as described.

4. In a system of electrical distribution for railways, the combinationof a continuousmain insulated conductor, a contact making conductorcomposed of a series of sections insulated from one another, a series ofelectromagnetically controlled contacts for electrically connecting anddisconnecting the said main conductor with the respective sections ofthe sectional conductor, normally open shunt circuits including themagnets of said contacts, magnetically controlled contacts for makingand breaking said shunt circuits, and a magnet traveling with the caradapted to operate said contacts of the shunt circuits in the manner andfor the purpose described.

5. In a system of electrical distribution for railways, the combinationof a continuous main insulated conductor, a contact making conductorcomposed ot` a series of sections insulated from one another, a seriesof electromagnetically controlled contacts for electrically connectingand disconnecting the said main conductor with the respective sectionsof the sectional conductor, normally open shunt circuits including themagnets of said contacts, magnetically controlled contacts for makingand breaking said shunt circuits, lock armatures for retaining thecontacts of said shunt circuits, electro-magnets for releasing said lockarmatures, and second normally open shunt circuits including saidreleasing mag-- nets controlled by the contacts of the tirst shuntcircuits in the order described, whereby the closure of circuit throughone of the sections of the sectional conductor is releasedsimultaneously with the closure of circuit through a succeeding section.

In testimony whereof I have aiiixedmysignature in presence of twowitnesses.

GEORG WILHELM VON SIEMENS.

Witnesses:

W. HAUPT, MAX WAGNER.

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